Model forpp→pXInclusive Reaction at Small Momentum Transfers

Threshold pion electroproduction at large momentum transfers

Threshold Pion Production at Large Momentum Transfers

We consider threshold pion electroproduction on a proton target for photon virtualities in the region 1 − 10 GeV. The S-wave multipoles at threshold, E0+ and L0+, are calculated using light-cone sum rules.

Relationship between Gamow-Teller transition probabilities and (p,n) cross sections at small momentum transfers.

C. C. Foster Indiana Uni versity Cyclotron Facility, Bloomington, Indiana 47405 (Received 12 July 1985) Gamow-Teller transition probabilities are extracted for eight nuclei with masses between 3 = 13 and 39 from medium-energy (p, n) reactions via the distorted-wave impulse approximation, and compared with experimental P-decay and with free-nucleon transition probabilities. These comparisons ind...

Pion Form Factor in QCD at Intermediate Momentum Transfers

We present a quantitative analysis of the electromagnetic pion form factor in the light-cone sum rule approach, including radiative corrections and higher-twist effects. The comparison to the existing data favors the asymptotic profile of the pion distribution amplitude and allows to estimate the deviation: ( ∫ du/uφπ(u))/( ∫ du/uφas π (u)) = 1.1± 0.1 at the scale 1 GeV. Special attention is pa...

Relativistic models for quasielastic (e,e') at large momentum transfers.

Inclusive quasielastic response functions are calculated for electron scattering in a relativistic model including momentum dependent scalar and vector mean fields. The momentum dependence of the mean fields is taken from Dirac optical fits to proton nucleus scattering and is important in describing data at momentum transfers of 1 GeV/c or larger. Our simple model is applicable for quasielastic...